Table 1. Multivariate analysis of factors associated with knowledge scores.

Variables	Univariate		Multivariate
	OR (95% CI)	P	OR (95% CI)	P
Age
<50 years	Ref.
≥50 years	0.63 (0.38, 1.05)	0.075
Residence
Rural	Ref.
Urban	2.14 (1.28, 3.58)	0.004	1.25 (0.63, 2.47)	0.525
Education
Middle school and below	Ref.
High school/technical secondary school	0.78 (0.41, 1.49)	0.456	0.57 (0.27, 1.19)	0.137
Junior college and above	4.69 (2.23, 9.89)	<0.001	3.36 (1.34, 8.43)	0.010
Marital status
Married	0.52 (0.24, 1.10)	0.087
Unmarried/divorced/widowed	Ref.
Childbirth
Yes	1.43 (0.61, 3.35)	0.415
No	Ref.
Menopause
Yes	1.26 (0.76, 2.08)	0.368
No	Ref.
Duration of breast cancer
<3 years	Ref.
≥3 years	0.75 (0.38, 1.50)	0.415
Duration of chemotherapy for breast cancer
<6 months	Ref.
≥6 months	0.85 (0.47, 1.54)	0.590
Chemotherapy-related neutropenia or febrile neutropenia
Yes	1.49 (0.84, 2.66)	0.173	1.43 (0.78, 2.62)	0.247
No	Ref.
Unclear	0.38 (0.19, 0.77)	0.008	0.39 (0.19, 0.83)	0.014